javascript 数组和 jsf/richfaces

Question

我在 javascript 中有以下代码:

        <script type="text/javascript"
            src="#{facesContext.externalContext.requestContextPath}/js/sample-points.js"></script>

        <script type="text/javascript">//<![CDATA[
            var cloudmade = new CM.Tiles.CloudMade.Web({key: 'bbb'});
            var map = new CM.Map('cm-example', cloudmade);
            map.setCenter(new CM.LatLng(51.50874, 22.76367), 4);

            var markers = [];
            for (var i = 0; i < samplePoints.length; i++) {
                markers.push(new CM.Marker(new CM.LatLng(samplePoints[i][0], samplePoints[i][1])));
            }

            var clusterer = new CM.MarkerClusterer(map, {clusterRadius: 70});
            clusterer.addMarkers(markers);
        //]]></script>

“samplePoints”是一个坐标数组，我可以用它来在 map 上显示标记。

map 显示在这里:

<div id="cm-example" style="width: 99.5%; height: 600px"></div>

我如何在不使用文件的情况下从 jsf/richfaces 提供这个数组(例如，我想从数据库中获取这些数据，创建数组并发送到这个脚本)？

谢谢

Answer 1

让 JSF 打印它，就好像它是 JavaScript 代码一样。

替换

var markers = [];
for (var i = 0; i < samplePoints.length; i++) {
    markers.push(new CM.Marker(new CM.LatLng(samplePoints[i][0], samplePoints[i][1])));
}

通过(假设是 Facelets)

var markers = [];
<ui:repeat value="#{bean.samplePoints}" var="samplePoint">
    markers.push(new CM.Marker(new CM.LatLng(#{samplePoint[0]}, #{samplePoint[1]})));
</ui:repeat>

哪里#{bean.samplePoints}返回 List<BigDecimal[]>什么的。